Buildify all the build files

We are slowly upgrading them all.  Bite bullet and do the rest of them.

Change-Id: I15744cf1b0dc1954954e131b35228c98247c92fe
diff --git a/third_party/protobuf/BUILD b/third_party/protobuf/BUILD
index ea13eed..9b5c4ff 100644
--- a/third_party/protobuf/BUILD
+++ b/third_party/protobuf/BUILD
@@ -44,12 +44,12 @@
 
 load(
     ":protobuf.bzl",
+    "COPTS",
     "cc_proto_library",
-    "py_proto_library",
     "internal_copied_filegroup",
     "internal_gen_well_known_protos_java",
     "internal_protobuf_py_tests",
-    "COPTS",
+    "py_proto_library",
 )
 
 cc_library(